AMD Ryzen 3 2300X 's Advantages
Higher specification of memory (2933 vs 2400)
Larger memory bandwidth (43.71GB/s vs 37.5GB/s)
More modern manufacturing process (12nm vs 14nm)
Intel Core i3 9300 's Advantages
Released 7 months late
Integrated graphics card
Higher base frequency (3.7GHz vs 3.5GHz)
Larger L3 cache size (8MB vs 4MB)
Lower TDP (62W vs 65W)